Featuring a radiation warning symbol, whose yellow base and symbol area light up!  Button has a rounded surface, pleasing to the touch.   Includes a full housing assembly to replace the smaller OEM start button and cover the counterbore in the cabinet.

Did you know — this symbol is called a “Trefoil” and was actually designed to be magenta on a blue background?  The blue background was changed to yellow in 1948, and while magenta is still the design intent for the trefoil, current regulations allow for black as a substitute. Source: https://www.orau.org/health-physics-museum/articles/radiation-warning-symbol.html

Because of this interesting symbol history, the TNA button with a magenta trefoil or a black trefoil.  The choice is yours!